A sample bottle

Abstract

The present application relates to the technical field of sample collection devices, and specifically discloses a sample bottle, comprising a bottle body and a separation tube; the separation tube is arranged inside the bottle body, one end of the separation tube is located at the bottle mouth of the bottle body, and the other end extends to the bottom of the bottle body; a first filtering surface and a second filtering surface are arranged inside the bottle body; the inner wall of the bottle body, the first filtering surface, and the outer wall of the separation tube form a first cavity; the first filtering surface, the inner wall of the bottle body, and the second filtering surface form a second cavity; the second filtering surface and the inner wall of the separation tube form a third cavity; the first filtering surface connects the first cavity and the second cavity; and the second filtering surface connects the second cavity and the third cavity. The present application can perform two separations on the collected sample, thereby effectively removing impurities in the sample, improving the separation effect, facilitating the subsequent observation of clear cell morphology, and improving the quality of the preparation.

Description

Technical Field

[0001] The present application relates to the technical field of sample collection devices, and in particular to a sample bottle. Background Art

[0002] In the pretreatment of liquid-based cells, a sampling brush is typically used to collect cell mucus and place it in a sample bottle for separation to separate impurities. The prior art sample bottle has two cavities within the sample bottle, with a filter screen positioned between the two cavities. This filter screen filters and separates larger cell clusters of impurities. However, due to the single-stage filtration separation, the prior art has a poor filtration effect, resulting in a high concentration of impurities in the prepared cells. This makes it difficult to clearly see the cell morphology when observing the prepared cell slides later, thus hindering sample observation. Summary of the Invention

[0003] The purpose of this application is to provide a sample bottle that can separate the collected sample twice, thereby effectively removing impurities in the sample, improving the separation effect, facilitating the subsequent observation of clear cell morphology, and improving the preparation quality.

[0004] The embodiment of the present application is implemented as follows:

[0005] An embodiment of the present application provides a sample bottle, comprising a bottle body and a separation tube; the separation tube is arranged inside the bottle body, one end of the separation tube is located at the bottle mouth of the bottle body, and the other end extends toward the bottom of the bottle body; a first filtering surface and a second filtering surface are provided in the bottle body; the inner wall of the bottle body, the first filtering surface and the outer wall of the separation tube form a first cavity; the first filtering surface, the inner wall of the bottle body and the second filtering surface form a second cavity; the second filtering surface and the inner wall of the separation tube form a third cavity; the first filtering surface connects the first cavity and the second cavity; the second filtering surface connects the second cavity and the third cavity.

[0006] As an optional implementation, the first filter surface and the second filter surface are arranged in layers.

[0007] As an optional embodiment, the first filtering surface is an annular filter screen, the outer edge of the annular filter screen is connected to the inner wall of the bottle body, and the inner edge of the annular filter screen extends along the axial direction of the separation tube and is connected to the outer wall of the separation tube.

[0008] As an optional embodiment, the extending end of the separation tube is provided with a tapered opening facing the bottom of the bottle body; and the second filtering surface is provided at the tapered opening.

[0009] As an optional embodiment, a sealing cover is provided at the bottle mouth, and an easy-to-pierce portion is provided in the middle of the sealing cover; the separation tube is located in the middle of the bottle body, and the end of the separation tube abuts against the sealing cover.

[0010] As an optional embodiment, the bottle body includes a hanging cup and an external protective shell mounted on the outside of the hanging cup; a bottom opening is provided at the bottom of the hanging cup, and a conical bottle bottom connected to the bottom opening is provided on the external protective shell; the conical bottle bottom is provided with a limiting support member that abuts against the conical opening.

[0011] As an optional embodiment, a connection structure connected to the separation tube is provided in the hanging cup; the connection structure includes a plurality of connection pieces arranged at intervals around the separation tube.

[0012] As an optional embodiment, the external protective shell includes a support ring that is sleeved on the periphery of the conical bottle bottom and extends along the axis of the separation tube.

[0013] As an optional implementation, a sampling brush is placed in the first cavity.

[0014] As an optional embodiment, the outer side of the bottle mouth is provided with an external thread connected to the sealing cover.

[0015] The beneficial effects of the embodiments of the present application include:

[0016] The embodiment of the present application discloses a sample bottle. By arranging a separation tube, a first filter surface and a second filter surface inside the bottle body, three cavities are arranged inside the bottle body. The three cavities include a first cavity formed by the inner wall of the bottle body, the first filter surface and the outer wall of the separation tube; a second cavity formed by the first filter surface, the inner wall of the bottle body and the second filter surface; and a third cavity formed by the second filter surface and the inner wall of the separation tube. In the process of using the sample bottle device provided by the present application, the staff can first put the collected sample into the first cavity, so that the first filter surface can filter the sample for the first time, leaving large impurities in the first cavity. The sample enters the third cavity from the second cavity, and a second filtration can be achieved through the second filter surface. Therefore, compared with the existing technology, the present application can effectively remove impurities in the sample, improve the separation effect, and facilitate the later observation of clear cell morphology. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] In order to more clearly illustrate the technical solutions of the embodiments of the present application, the following is a brief introduction to the drawings required for use in the embodiments. It should be understood that the following drawings only show certain embodiments of the present application and therefore should not be regarded as limiting the scope. For ordinary technicians in this field, other relevant drawings can be obtained based on these drawings without creative work.

[0018] Figure 1 This is one of the structural diagrams of the sample bottle according to the embodiment of the present application;

[0019] Figure 2 This is the second structural diagram of the sample bottle according to the embodiment of the present application;

[0020] Figure 3 This is the third structural diagram of the sample bottle according to the embodiment of the present application;

[0021] Figure 4 This is the fourth structural diagram of the sample bottle of the embodiment of the present application;

[0022] Figure 5 This is the fifth structural diagram of the sample bottle according to the embodiment of the present application;

[0023] Figure 6 This is the sixth structural diagram of the sample bottle according to the embodiment of the present application;

[0024] Figure 7 This is the seventh structural diagram of the sample bottle according to the embodiment of the present application;

[0025] Figure 8 This is the eighth structural diagram of the sample bottle according to the embodiment of the present application.

[0026] Icons: 100-bottle body; 101-sealing cover; 102-separation tube; 103-filter screen; 104-first filter surface; 105-second filter surface; 106-first cavity; 107-second cavity; 108-third cavity; 109-easy-to-pierce part; 110-hanging cup; 111-external protective shell; 112-connecting structure; 113-bottom opening; 114-conical bottle bottom; 115-support ring; 116-external thread; 117-structural reinforcement; 118-sampling brush; 119-conical opening; 120-annular filter screen; 121-conical bottle bottom; 122-limiting support. DETAILED DESCRIPTION

[0027] To make the objectives, technical solutions, and advantages of the embodiments of the present application more clear, the technical solutions in the embodiments of the present application will be clearly and completely described below in conjunction with the accompanying drawings of the embodiments of the present application. Obviously, the described embodiments are only part of the embodiments of the present application, not all of the embodiments. Generally, the components of the embodiments of the present application described and shown in the drawings herein can be arranged and designed in various different configurations.

[0028] Therefore, the following detailed description of the embodiments of the present application provided in the accompanying drawings is not intended to limit the scope of the present application for protection, but merely represents selected embodiments of the present application. All other embodiments obtained by persons of ordinary skill in the art based on the embodiments in the present application without creative work are within the scope of protection of the present application.

[0029] It should be noted that similar reference numerals and letters represent similar items in the following drawings. Therefore, once an item is defined in one drawing, it does not need to be further defined or explained in subsequent drawings. In addition, the terms "first," "second," "third," etc. are used only to distinguish the descriptions and are not to be understood as indicating or implying relative importance.

[0030] It should also be noted that, in the description of this application, unless otherwise expressly specified or limited, the terms "disposed," "installed," "connected," and "connected" should be understood in a broad sense. For example, they can refer to fixed connections, detachable connections, or integral connections; they can refer to mechanical connections or electrical connections; they can refer to direct connections or indirect connections through an intermediate medium; and they can refer to internal connections between two components. Those skilled in the art will understand the specific meanings of the above terms in this application based on the specific circumstances.

[0031] The sample bottle provided by the existing technology has two cavities set in the sample bottle and a layer of filter screen set between the two cavities. The larger cell clusters and impurities are filtered and separated by the setting of the filter screen. Since it is a one-time filtration separation, the filtering effect of the existing technology is poor, and there are more impurities in the prepared cells, which makes it difficult to see the cell morphology when observing the obtained cell preparation later, which is not conducive to sample observation.

[0032] In response to the above technical problems, an embodiment of the present application provides a sample bottle.

[0033] Reference Figure 1 、 Figure 2 as well as Figure 3As shown, an embodiment of the present application provides a sample bottle, including a bottle body 100 and a separation tube 102; the separation tube 102 is arranged inside the bottle body 100, one end of the separation tube 102 is located at the bottle mouth of the bottle body 100, and the other end extends to the bottom of the bottle body 100; a first filtering surface 104 and a second filtering surface 105 are provided in the bottle body 100; the inner wall of the bottle body 100, the first filtering surface 104 and the outer wall of the separation tube 102 form a first cavity 106; the first filtering surface 104, the inner wall of the bottle body 100 and the second filtering surface 105 form a second cavity 107; the second filtering surface 105 and the inner wall of the separation tube 102 form a third cavity 108; the first filtering surface 104 connects the first cavity 106 and the second cavity 107; the second filtering surface 105 connects the second cavity 107 and the third cavity 108. A sealing cover 101 is provided at the bottle mouth, and an easy-to-pierce portion 109 is provided in the middle of the sealing cover 101 ; a separation tube 102 is located in the middle of the bottle body 100 , and the end of the separation tube 102 abuts against the sealing cover 101 .

[0034] It should be noted that when the sealing cap 101 is installed at the opening of the bottle body 100, the top of the separator tube 102 can abut against the sealing cap 101. In other words, the height of the separator tube 102 is slightly higher than the side wall of the bottle body 100. The abutment between the separator tube 102 and the sealing cap 101 facilitates the sealing cap 101 to effectively seal the top opening of the separator tube 102. The staff can extract the twice-filtered sample from the third cavity 108 through the overlapping portion of the sealing cap 101 and the top opening of the separator tube 102. Because the top of the separator tube 102 is in close contact with the sealing cap 101, the liquid in the first cavity 106 can be prevented from entering the third cavity 108, effectively preventing liquid leakage. In addition, during the process of extracting the sample from the third cavity 108, the close contact between the top of the separator tube 102 and the sealing cap 101 ensures that an effective pressure difference is formed, preventing pressure release in the third cavity 108. The lower end of the separation tube 102 is separated from the bottom of the bottle body 100, so that the first filter surface 104, the inner wall of the bottle body 100 and the second filter surface 105 can form a second cavity 107. Among them, the screening particle sizes of the first filter surface 104 and the second filter surface 105 can be set by those skilled in the art as needed, and are not specifically limited here. The purpose is to enable the first filter surface 104 to complete the first screening of the sample, and the second filter surface 105 to complete the second screening of the sample. It should be noted that the separation tube 102 of the embodiment of the present application can be a circular tube or a pipe with a polygonal cross-section, for example, a square pipe, a pentagonal pipe or a hexagonal pipe. Those skilled in the art can choose according to their needs.

[0035] For example, a cervical cell mucus sample is collected using a sampling brush and placed into the first cavity 106 of the bottle 100. After the sealing cap 101 is closed, a staff member can use a negative pressure device to create a pressure differential within the sample bottle. Under the action of this pressure differential, the cervical cell mucus in the first cavity 106 passes through the first filter surface 104 and enters the second cavity 107. The sieving action of the first filter surface 104 causes mucus impurities and large cell clusters to be retained in the first cavity 106, while normal cells enter the second cavity 107. It should be noted that gravity can also be used to cause the cervical cell mucus in the first cavity 106 to pass through the first filter surface 104 and enter the second cavity 107. Under the action of the pressure differential or gravity, the cervical cell mucus in the first cavity 106 passes through the first filter surface 104 and enters the second cavity 107. Under the action of the pressure differential or gravity, the cervical cell mucus is sifted through the second filter surface 105, leaving normal cells in the second cavity 107, while smaller white blood cells, smaller impurities, and cell fluid pass through the second filter surface 105 and enter the third cavity 108. Compared to the existing technology, the present invention uses three cavities and two filtrations to effectively improve the screening and filtration effect of the sample, effectively reducing impurities in the prepared cell samples, making it easier to observe the obtained cell preparations later and clearly see the morphology of the sample cells. Therefore, the sample bottle provided by the present invention can help staff complete sample collection and testing work efficiently.

[0036] In addition, as needed, those skilled in the art can pierce the second filter surface 105 from the third cavity 108 and collect normal cells in the second cavity 107 for slide preparation and observation.

[0037] Reference Figure 2 and Figure 3 As shown, as an optional embodiment, the separator 102 is arranged in the middle of the bottle body 100, and the middle of the sealing cover 101 is provided with an easily pierced portion 109 that contacts the separator 102. Furthermore, the embodiment of the present application sets the setting position of the separator 102. The embodiment of the present application sets the separator 102 in the middle of the bottle body 100, so that sampling can be achieved when the sample bottle is at any angle. It should be noted that those skilled in the art can also set the separator 102 on one side of the bottle body 100, with the purpose of forming a first cavity 106, a second cavity 107 and a third cavity 108 in the bottle body 100 by setting the separator 102, the first filter surface 104 and the second filter surface 105.

[0038] Furthermore, in the embodiment of the present application, a pierceable portion 109 is provided in the middle of the sealing cap 101, which contacts the separator tube 102. The pierceable portion 109 can be, for example, a rubber sheet or a plastic film. The provision of the pierceable portion 109 allows the sealing cap 101 to simultaneously seal the bottle body 100 and the separator tube 102. During sample collection, a sampling device such as a needle can pierce the pierceable portion 109 to enter the third cavity 108 and collect the filtered sample.

[0039] Furthermore, the sealing cover 101 is provided with a pressure relief hole connected to the first cavity 106. The provision of the pressure relief hole can make the pressure in the first cavity 106 normal pressure, thereby forming a large pressure difference, so that the cell fluid and small-sized impurities can enter the third cavity 108 smoothly.

[0040] It should be noted that the pressure relief hole can be a pinhole formed by a needle penetrating the edge of the sealing cover 101, or it can be a through hole directly set on the sealing cover 101; in addition, technicians in this field can set a detachable sealing plug on the through hole as needed.

[0041] The present application discloses a sample bottle. By disposing a separator tube 102, a first filter surface 104, and a second filter surface 105 within the bottle body, three cavities are provided within the bottle body 100. These three cavities include a first cavity 106 formed by the inner wall of the bottle body 100, a sealing cap 101, the first filter surface 104, and the outer wall of the separator tube 102; a second cavity 107 formed by the first filter surface 104, the inner wall of the bottle body 100, and the second filter surface 105; and a third cavity 108 formed by the second filter surface 105, the inner wall of the separator tube 102, and the sealing cap 101. When using the sample bottle device provided by the present application, a worker can first place a collected sample into the first cavity 106, allowing the first filter surface 104 to perform a primary filtration on the sample, leaving large impurities in the first cavity 106. The sample then enters the third cavity 108 from the second cavity 107, where it undergoes a secondary filtration through the second filter surface 105. Therefore, compared with the existing technology, the present application can effectively remove impurities in the sample, improve the separation effect, and facilitate the subsequent observation of clear cell morphology.

[0042] As an optional embodiment, the first filter surface 104 and the second filter surface 105 are arranged in parallel, wherein the first filter screen 104 and the second filter surface 105 form a filter screen 103 .

[0043] Reference Figure 3 As shown, the extended end of the separator tube 102 vertically penetrates the filter screen 103, and the first filter surface 104 and the second filter surface 105 are located in the same plane or are spaced apart from each other. Exemplarily, the first filter surface 104 is located in the lower middle portion of the separator tube 102, while the second filter surface 105 is located at the bottom of the separator tube 102. Exemplarily, both the first filter surface 104 and the second filter surface 105 are located at the bottom of the separator tube 102. Those skilled in the art can adjust these settings as needed.

[0044] Reference Figure 6 、 Figure 7 as well as Figure 8As shown, in a more preferred embodiment, the first filter surface 104 is an annular filter screen 120. The outer edge of the annular filter screen 120 is connected to the inner wall of the bottle body 100, and the inner edge of the annular filter screen 120 extends along the axial direction of the separation tube 102 and is connected to the outer wall of the separation tube 102. In other words, the first filter surface 104 is a conical annular filter surface.

[0045] Reference Figure 6 and Figure 8 As shown, the inner edge of the first filter surface 104 is connected to the extended end of the separator tube 102, specifically, the tapered opening 119 of the separator tube 102. The outer edge of the first filter surface 104 is located near the bottle opening. Alternatively, as needed, one skilled in the art may also arrange for the inner edge of the first filter surface 104 to be located near the bottle opening, while the outer edge to be located near the extended end of the separator tube 102.

[0046] It should be noted that, unlike the above-mentioned embodiment, the embodiment of the present application sets the first filter surface 104 at an angle, so that the sample can slide down the first filter surface 104 at an angle under the action of gravity, which can avoid the clogging of the filter screen at the first filter surface 104 by larger substances, so that the first filter surface 104 can perform reliable and effective filtration.

[0047] Reference Figure 6 and Figure 8 As shown, as an optional embodiment, the extended end of the separation tube 102 is provided with a tapered opening 119 facing the bottom of the bottle body; the second filter surface 105 is disposed at the tapered opening 119. Compared to the above embodiment, the embodiment of the present application is provided with a tapered opening 119 at the extended end, and the second filter surface 105 is disposed at the tapered opening 119. The embodiment of the present application can expand the installation area of ​​the filter membrane at the second filter surface 105. Due to the increased area of ​​the second filter surface 105, the sample has a larger passage area, which can effectively prevent the sample from clogging the second filter surface 105, allowing the second filter surface 105 to perform reliable and effective filtration.

[0048] Reference Figure 4 、 Figure 5 、 Figure 6 as well as Figure 8 As shown, as an optional embodiment, the bottle body 100 includes a hanging cup 110 and an external protective shell 111 mounted on the outside of the hanging cup 110; a bottom opening 113 is provided at the bottom of the hanging cup 110, and a conical bottle bottom 121 connected to the bottom opening 113 is provided on the external protective shell 111; the conical bottle bottom 121 is provided with a limiting support 122 that abuts against the conical opening 119.

[0049] The bottom of the hanging cup 110 of the embodiment of the present application is provided with a bottom opening 113, and a conical bottom 114 connected to the bottom opening 113 is provided within the external protective shell 111. The bottom of the hanging cup 110 of the embodiment of the present application is provided with an opening, and the conical bottom 114 connected to the bottom opening 113 is provided within the external protective shell 111 to seal the bottom of the hanging cup 110. The hanging cup 110 and the conical bottom 114 form the inner cavity of the bottle body 100. This design can simplify the structure of the bottle body 100, facilitate injection molding in a mold, and thus facilitate manufacturing.

[0050] For example, refer to Figure 7 As shown, the first filtering surface 104 can be arranged at the bottom opening 113 of the hanging cup 110 , and the conical annular surface of the first filtering surface 104 is arranged parallel to the conical surface of the conical bottle bottom 121 .

[0051] It should be noted that the bottle body 100 of the embodiment of the present application includes a hanging cup 110 and an external protective shell 111 that is sleeved on the outside of the hanging cup 110. The hanging cup 110 and the external protective shell 111 are sleeved together so that the bottle body 100 can be separately manufactured, thereby enabling the structure of the bottle body 100 to be disassembled and simplified, making it easier to perform injection molding in a mold. Among them, the embodiment of the present application can provide reliable external protection for the hanging cup 110 through the external protective shell 111, thereby preventing the hanging cup 110 from being damaged by external forces. In addition, the embodiment of the present application can greatly enhance the structural strength of the entire sample bottle through the double-layer design of the external protective shell 111 and the hanging cup 110, thereby enhancing the reliability of the first cavity 106, the second cavity 107, and the third cavity 108, thereby preventing the sample bottle from being broken and failing due to external force collisions.

[0052] Reference Figure 4 and Figure 7 As shown, as an optional embodiment, a connection structure 112 connected to the separation tube 102 is provided in the hanging cup 110; the connection structure 112 includes a plurality of connection pieces arranged at intervals around the separation tube 102 in the circumferential direction.

[0053] It should be noted that, in the embodiment of the present application, a connecting structure 112 is provided inside the hanging cup 110, and the separation tube 102 is fixed by the connecting structure 112. The connecting structure 112 may be a plurality of connecting rods arranged at intervals around the separation tube 102 in the circumferential direction, and the angles between the plurality of connecting rods may be the same, that is, the connecting rods are evenly spaced around the separation tube 102 in the circumferential direction. For example, 6 connecting rods may be provided, or 3 evenly spaced connecting rods may be provided. Those skilled in the art may make a selection according to their needs. It should be noted that the connecting structure 112 may be one group or multiple groups.

[0054] Exemplarily, there is one group of connecting structures 112, which are arranged in the middle and lower part of the separation tube 102, that is, the middle and lower part of the outer wall of the separation tube 102 is connected to the inner wall of the hanging cup 110. One group of connecting structures 112 can also be directly arranged in the middle part of the separation tube 102. Exemplarily, there can also be two groups of connecting structures 112, and the two groups of connecting structures 112 can be respectively arranged at the upper end and the lower end of the separation tube 102. Exemplarily, there can also be three groups of connecting structures 112, and the three groups of connecting structures 112 can be respectively arranged at the upper end, the lower end and the middle part of the separation tube 102. Compared with one group of connecting structures 112, multiple groups of connecting structures 112 can reliably fix the separation tube 102, thereby preventing the separation tube 102 from moving in the hanging cup 110 and causing the filter screen 103 to fail.

[0055] Reference Figure 1 As shown, as an optional embodiment, the outer protective shell 111 includes a support ring 115 that is sleeved on the periphery of the conical flask bottom 114 and extends along the direction in which the separation tube 102 is set. Furthermore, the embodiment of the present application is provided with a support ring 115 on the periphery of the conical flask bottom 114, so that the sample bottle is easy to place and avoid tipping during placement. In addition, the embodiment of the present application can make the sample inside the second cavity 107 gather directly below the opening of the separation tube 102 through the provision of the conical flask bottom 114, facilitating sample extraction in the third cavity 108.

[0056] Reference Figure 1 As shown, as an optional embodiment, a structural reinforcement 117 is provided in the support ring 115. In the embodiment of the present application, by providing the structural reinforcement 117 in the support ring 115, the structural strength of the entire sample bottle can be further enhanced.

[0057] Reference Figure 2 As shown, as an optional embodiment, a sampling brush 118 is placed in the first cavity 106. This application discloses placing the sampling brush 118 in the first cavity 106. By placing the sampling brush 118 in the first cavity 106, it is convenient for staff to collect samples.

[0058] Reference Figure 5 As shown, as an optional embodiment, the outer side of the opening is provided with an external thread 116 connected to the sealing cover 101. In this embodiment of the application, the sealing cover 101 is threadedly connected to the external thread 116 to achieve a reliable fixation of the sealing cover 101. As needed, those skilled in the art may also adopt other connection methods, such as snapping the sealing cover 101 to the outer side of the opening.

[0059] The above description is merely a preferred embodiment of the present application and is not intended to limit the present application. Various modifications and variations are possible for those skilled in the art. Any modifications, equivalent substitutions, or improvements made within the spirit and principles of the present application shall be included within the scope of protection of the present application.

Claims

1. A sample bottle, characterized in that: The invention comprises a bottle body and a separation tube; the separation tube is arranged inside the bottle body, one end of the separation tube is located at the bottle mouth of the bottle body, and the other end extends to the bottom of the bottle body; a first filtering surface and a second filtering surface are arranged in the bottle body; the inner wall of the bottle body, the first filtering surface and the outer wall of the separation tube form a first cavity; the first filtering surface, the inner wall of the bottle body and the second filtering surface form a second cavity; the second filtering surface and the inner wall of the separation tube form a third cavity; the first filtering surface is connected to the first cavity and the second cavity; the second filtering surface is connected to the second cavity and the third cavity; the first filtering surface and the second filtering surface are connected The filtering surfaces are arranged in layers; the first filtering surface is an annular filter screen, the outer edge of the annular filter screen is connected to the inner wall of the bottle body, and the inner edge of the annular filter screen extends along the axial direction of the separation tube and is connected to the outer wall of the separation tube; the extended end of the separation tube is provided with a conical opening facing the bottom of the bottle body; the second filtering surface is arranged at the conical opening; the bottle body includes a hanging cup and an external protective shell arranged outside the hanging cup; the bottom of the hanging cup is provided with a bottom opening, and the external protective shell is provided with a conical bottle bottom connected to the bottom opening; the conical bottle bottom is provided with a limiting support member that abuts against the conical opening.

2. The sample bottle according to claim 1, characterized in that A sealing cover is provided at the bottle mouth, and an easy-to-pierce portion is provided in the middle of the sealing cover; the separation tube is located in the middle of the bottle body, and the end of the separation tube abuts against the sealing cover.

3. The sample bottle according to claim 1, characterized in that A connection structure connected to the separation tube is provided in the hanging cup; the connection structure includes a plurality of connection pieces spaced apart around the circumference of the separation tube.

4. The sample bottle according to claim 1, characterized in that The external protective shell includes a support ring which is sleeved on the periphery of the conical bottle bottom and extends along the axis direction of the separation tube.

5. The sample bottle according to any one of claims 1 to 4, characterized in that: A sampling brush is placed in the first cavity.

6. The sample bottle according to any one of claims 1 to 4, characterized in that: The outer side of the bottle mouth is provided with an external thread connected with the sealing cover.

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